Merge "Validate events before printing them" into udc-dev am: 38a3e0b7 am: de8285ea

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/22790442



Change-Id: I5b7adc9ce73b3f8622d1c96b967606ea6f2d388f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>